I've got a signature black bean and corn salad that is pretty remarkable for something relatively simple.
My vegan chili would be one of my core dishes, too. (Not so simple.)
And a smoky carrot dip that also works as a dressing with a bit of sherry vinegar added.
Though I'm also a seat-of-the-pants cook who is compulsive about keeping a well stocked pantry--so making something for company is never an issue.